The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2013
Filed:
Nov. 16, 2006
Toshiyuki Takahashi, Tokyo, JP;
Atsushi Hori, Tokyo, JP;
Yuka Fujita, Tokyo, JP;
Koichi Hiramatsu, Tokyo, JP;
Takeo Kawaura, Tokyo, JP;
Toshiyuki Takahashi, Tokyo, JP;
Atsushi Hori, Tokyo, JP;
Yuka Fujita, Tokyo, JP;
Koichi Hiramatsu, Tokyo, JP;
Takeo Kawaura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An image processing device includes a multiplierfor multiplying a pixel signal P(x) by a weighting factor α(0≦α≦1), a delay elementfor delaying the pixel signal P(x) which has not been multiplied yet by the weighting factor αby the multiplierby one pixel, and a multiplierfor multiplying the pixel signal P(x−1) delayed by the delay elementby a weighting factor α(0≦α≦1), the total sum of the weighting factors αand αbeing larger than 1 and smaller than an upper limit αmax. An adderadds the multiplication result α·P(x) of the multiplierand the multiplication result α·P(x−1) of the multiplier, and a limiterlimits the addition result P'(x) of the adderin such a way that P′(x) falls within a maximum density value Pmax.